Preheat the oven to 400 °F.
Prepare a cookie sheet with a silicone baking mat or parchment paper.
In a medium bowl combine the flour, cream of tartar, baking soda and salt. Set aside.
Add the butter and 1 1/2 cups of sugar to a large mixing bowl and cream until light in color and fluffy in texture. About 2-3 minutes.
Add the eggs one at a time, mixing until combined after each. Scrape down the sides of the bowl, as needed.
Add the vanilla extract and mix until well combined
Add the dry ingredients and mix until well combined
In a small bowl combine 3 tbsp of sugar with the cinnamon.
Create balls of one tablespoon of cookie dough each.
Roll each ball of cookie dough in the cinnamon sugar mixture, then set on the prepared cookie sheet with about 2 inches between them.
Bake for 6-8 minutes
Remove cookies from the oven and allow to sit for 2-3 minutes, then move to a cooling rack.
Store cookies in an airtight container.